Cast-metal wheel



Augq 31 192%. LSQSWW L. D. KAY

CAST METAL WHEEL Filed Nov. 4. 1925- ilk Patented Aug. 31, 1926.

pairs stares LLOYD D. KAY, OF LOS ANGELES, CALIFORNIA.

CAST-METAL 'W'HEIEL.

Application filed November 4, 1925. Serial No. 66,739.

This invention relates to cast metal wheels and while the invention is applicable to the construction of cast iron wheels, it is especially useful. in the construction of wheels to be cast of steel.

The general object of the invention isto produce a wheel of the disk type which will be relatively light and which will effectively support its load; also to provide a wheel of this type which in cooling will avoid developing internal stresses in the metal.

Further objects of the invention will appear hereinafter. i

The invention consists of the novel parts and combination of parts to be described hereinafter, all of which contribute to pro duce an eiiicient cast metal wheel.

A preferred embodiment of the invention is described in the following specification,

while the broad scope of the invention is pointed out in the appended claims.

In the drawings Figure 1 is a front elevation and partial section through a wheel embodying my invention.

Fig. 2 is a sideelevation and section through the wheel, the said section being taken about in the plane of the line 22 of Figure 1. In practicing my invention I provide a body 1 for the wheel which is of disk type and which preferably is formed of a dished di .1 2; that is, to say in cross section on the radial line the disk will'present a concavconvex form, see Figure 1. The wheel includes a hub portion 3 which consists of two separated webs 4c which are united in tegrally to the body 1. At its outer portion the body 2 is providedwith an integral web 5 which extends continuously around the wheel and this web diverges from the edge portion 6 of the disk of the wheel so as to form a V-shaped notch 7 which extends continuously around the wheel. This web 5 and the edge 6 of the wheel disk terminate in extensions 8 which project outwardly, that is to say, they are preferably disposed in a plane substantially at right angles to the axis of the wheel. These extensions cooperate with each other to form the rim 9 of the wheel. I prefer, however, to construct this rim 9 of open rectangular cross section, that is to say, it is of box form. For this purpose I prefer to provide the extensions 8 with flanges 10 which project to ward each other and which are of cylindribore 12.

cal iorm that is to say, they extend toward the middle portion of the wheel and cooperate to produce the tread of the wheel upon which the tire rim may be mounted. The web 5 and the portion 6 of the wheel are connected to the extensions 8 through rim members 11 which extend continuously around the wheel.

The hub portion 3 is provided with a central opening; 12 to receive a separate hub or the arm of an axle. This opening 1:2 may be bored to'a suitable diameter.

In order to prevent the development of internal strains or stresses inthe wheel in cooling, I prefer to leave the webs 3 unconnected with each other at the opening or The hub portion may be provided with suitable boltopenings 13 to make any suit able attachment to the wheel.

The rim of the wheel preferably includes a. plurality of transverse bridge-webs 14 whiehconnect the web 5 with the edge portion 6 of the disk of the wheel and these bridge-webs also extend out under the inner sides of the flanges 10.

ht a plurality of points between thcst bridge-webs I provide small ribs 15 which integrally connect the flanges 10 with the extensions 8 and with the rim members 11. These ribs operate to give considerable support to theflanges 10 between the bridge webs 1a: and also operate to impart the load stresses to the rim members and to the portions 5 and 6 of the wheeh thereby reliev ing the stresses in the extensions 8.

By reason of the fact that the webs l are unconnected to each other at the hub a continuous gap 16 is formed which extends around the center opening12. In other words this gap divides the hub at an intermediate point.

lVith a wheel constructed in this way it -will be noted that I utilize the inherent strength of a concavo-convex disk but without involving a displacement laterally of the plane of the wheel. lnother words, I form a disk body of concavo-convex form and then build on the hub portion and rim of thewheel integral extensions in such a way that the middle plane of the wheel passes substantially tangentially to the curve of the disk when viewed in cross section.

It is understood that the embodiment of the invention described herein is only one of the many embodiments this invention ing a body consisting of'a 'disk'with a hub portion formed of two separated webs connected integrally: with the body, said hub portion having central opening therethroughto receive separate lniborthe arm of an axle, said webs being'unconnec'tcd toeach other at said central opening,"'said sions projecting away from thefaxis of the wheel and having iianges proj eeting toward the middle plane of the'jwheel.

2., A- cast metal wheel oi 'disl ztype having a body OOnSlSlZlHQOf a disk witha' hubp'ortion formed'oi two separated webs connected 1ntegrally" with tli'ebody, '"said hub por tion having a central opening therethrouglr to receive a separate hub or the arm of an axle, said webs being unconnectedto each;-

other at. said central 0 acnin said wheel havin an 'iular rnn' members connectedin te -rali T to said bOCl-' Wlil1 extensions are z; I 1

1ectmg'awayironi'the arr-1s or the wheel, and

having flanges projecting toward: the-mick dle plane of the wheel; transverse bridgewebs'dis dosed at a oluralit oi noints o l i i said rim members. w

around: the wheel and i tegrally uniting 3. -A cast metal wheel of disk type having a body consisting of a disx with a hub portion formed of two separated' -webs connect ed integrally-with the body, sai d hi b' portion having a central opening thereth'rough to receive a separatehubor 'the a-rm' of an axle, said webs'ibeing unconnected to eachother at said central opening, said wheel having annular r im members connected in tegrally to said body with GXtQIlSlODS projecting awavfrom the axis of the wheel having inwardly projecting flanges, transverse bridge-webs disposed at a plurality of points around the wheel and'integrallyiiniting' said rim members, and a plurality of ribs disposed between the bridge-webs and integrally connecting the flanges with the rim members. r

4:. A cast metal wheel of disk type having a'bocly consisting of a dished web and hav- 'ing from the dishedportion of said body,

said last na'medfiv'e and the 'outer'edgc of the dished portionof saidbody having in tegral rim members with extensions extendwheel having annular rim 1 members con nected integrally to said body with- :ten"-" ing away from the axis of the wheeland eoperatingtoiorin a rini'ior the wheel."

5. A cast metal wheel 'of'disk type having of the whecllying substantially tangent to the curved" portion of the disk, ahubportion composed of two webs, one of w'vhich disk at its inner edge "and the other of which I said"co'ncz'ivo-co vex disk portion terminating infa riin'i'nemberyand arin'i web con nectedintegrally'to the convex side of the disk and cooperating with the edge. of the" disk to form a substantially V-sh'aped 'roove er-ttencliing continuously around the *avheel, said rim w ebterminatingin a rim member cooperating with the first named I Tim member 'to'iorm a scatter the tirerim;

6. Acast metal wheel of disk'typehaving a body consistingota dished web a'nd'hav ing a hub portion consisting of two-webs and ui'iitedfil'itegrally to't'he'body,"-'said body having a web extending around'the 'sa'me and: diverging from the dished portion of said. bocly, sai'cl' last named web and the outer edgejot tli'e dished' portion of" said "body having integral rini members with ex tensions extending away froin" the axis of Fthe wheel and'cooperating to form a rim for the wheel. I l V Signed atLosAngeleSQCalifOrnia, this 29th day of October 1925. LLOYD n. KAY.

- connects integrally to thefconcavoconveX 

